When you buy an old car, it's easy to get pulled into various internet rabbit holes - buying guides, common problems, popular upgrades, that sort of thing. But I've set foot in a particularly deep and magnetic one-one to rival QAnon and Pizzagate: numberplates.

Modern UK plates are sensible and a bit boring. There's only one legal font and the first two pairs of numbers and letters tell you roughly where and when the car was first registered. Back before 2001, though, fonts were a free-for-all. There was a vaguely standard one, but I've seen everything short of hieroglyphs.